From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261881AbVANDRS (ORCPT ); Thu, 13 Jan 2005 22:17:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261874AbVANDQV (ORCPT ); Thu, 13 Jan 2005 22:16:21 -0500 Received: from fw.osdl.org ([65.172.181.6]:50354 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261871AbVANDNX (ORCPT ); Thu, 13 Jan 2005 22:13:23 -0500 Date: Thu, 13 Jan 2005 19:12:37 -0800 From: Andrew Morton To: Paul Davis Cc: nickpiggin@yahoo.com.au, lkml@s2y4n2c.de, rlrevell@joe-job.com, arjanv@redhat.com, joq@io.com, chrisw@osdl.org, mpm@selenic.com, hch@infradead.org, mingo@elte.hu, alan@lxorguk.ukuu.org.uk, linux-kernel@vger.kernel.org, kernel@kolivas.org Subject: Re: [PATCH] [request for inclusion] Realtime LSM Message-Id: <20050113191237.25b3962a.akpm@osdl.org> In-Reply-To: <200501140240.j0E2esKG026962@localhost.localdomain> References: <1105669451.5402.38.camel@npiggin-nld.site> <200501140240.j0E2esKG026962@localhost.localdomain> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Paul Davis wrote: > > >SCHED_FIFO and SCHED_RR are definitely privileged operations and you > > this is the crux of what this whole debate is about. for all of you > people who think about linux on multi-user systems with network > connectivity, running servers and so forth, this is clearly a given. > > but there is large and growing body of machines that run linux where > the sole human user of the machine has a strong and overwhelming > desire to have tasks run with the characteristics offered by > SCHED_FIFO and/or SCHED_RR. are they still "privileged" operations on > this class of linux system? what about linux installed on an embedded > system, with a small LCD screen and the sole purpose of running audio > apps live? are they still privileged then? > Paul. Everyone agrees with you. I think. We just need to work out the best way of doing it. Would I be right in suspecting that we know what to do, but nobody has stepped up to write the code? It's kinda looking like that?